Cook County Value

18400 Clyde Ave, Lansing, IL 60438

3 bed / 1 bath, 2,056 sqft, built 1987, in Thornton. Assessor market value for 2025: $249,570.

Cook County account 29363030110000

Assessor market value
$249,570
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,056 sqft
$121 per sqft
Year built
1987
Average quality

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 60438 and Thornton assessment pages.

Appeal deadlines

Thornton 2026 appeal dates have not been published yet.

Deadline rule: Set by township: file with the Assessor by your township's last file date, and with the Board of Review while your township is open there. Evidence is reviewed by the Cook County Assessor's Office or, in a separate appeal, by the Cook County Board of Review. Dates checked against the official source.

Assessment snapshot

These public CCAO records highlight what may be worth checking before you file.

  • Assessment changeThe assessor market value stayed about the same, from $249,570 in 2024 to $249,570 in 2025.
  • Assessor market value per square footThe current public record shows about $121 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Thornton neighborhood and ZIP 60438.
  • Neighborhood value signalAmong 199 residential records in the same neighborhood, the average assessor market value is about $133 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 18561 Carriage Ln, Lansing, IL 60438
    2,002 sqft | $121/sqft | built 1984 | Similar size (2,002 vs 2,056 sqft); Similar age (1984 vs 1987); Similar lot size (8,555 vs 7,920 sqft)
    $242,850
  • 18512 Clyde Ave, Lansing, IL 60438
    2,041 sqft | $128/sqft | built 1980 | Similar size (2,041 vs 2,056 sqft); Similar lot size (7,920 vs 7,920 sqft); Same quality (Average)
    $261,950
  • 18454 De Jong Ln, Lansing, IL 60438
    1,977 sqft | $137/sqft | built 1980 | Similar size (1,977 vs 2,056 sqft); Similar lot size (7,920 vs 7,920 sqft); Same quality (Average)
    $270,000
  • 18265 Olde Farm Rd, Lansing, IL 60438
    2,206 sqft | $113/sqft | built 1986 | 7% larger (2,206 vs 2,056 sqft); Similar age (1986 vs 1987); Similar lot size (7,575 vs 7,920 sqft)
    $250,000
  • 17748 State Line Ave, Lansing, IL 60438
    2,031 sqft | $123/sqft | built 1978 | Similar size (2,031 vs 2,056 sqft); Similar lot size (7,688 vs 7,920 sqft); Same quality (Average)
    $250,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2025. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

No change in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$249,570$00.0%
2024$249,570−$20,430−7.6%
2023$270,000+$106,760+65.4%
2022$163,240−$13,670−7.7%
2021$176,910$00.0%
2020$176,910——
5-year total+$72,660+41.1%